Study on manipulating photonic environment of emitters with scale dependent optical cavities

Photon emitters placed into an optical cavity will experience a surrounding photonic environment change, which is essential to push nanophotonic devices into the practical realm, including photonic switches, quantum networking and nano-lasers. Spontaneous emission of emitters plays a critical role i...

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Main Author: Hou, Songyan
Other Authors: Teo Hang Tong Edwin
Format: Thesis-Doctor of Philosophy
Language:English
Published: Nanyang Technological University 2020
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Online Access:https://hdl.handle.net/10356/142247
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1422472023-07-04T17:16:54Z Study on manipulating photonic environment of emitters with scale dependent optical cavities Hou, Songyan Teo Hang Tong Edwin Wang Hong School of Electrical and Electronic Engineering Research Techno Plaza EWANGHONG@ntu.edu.sg, HTTEO@ntu.edu.sg Engineering::Electrical and electronic engineering Photon emitters placed into an optical cavity will experience a surrounding photonic environment change, which is essential to push nanophotonic devices into the practical realm, including photonic switches, quantum networking and nano-lasers. Spontaneous emission of emitters plays a critical role in determining the performance of many photonic devices. Both dielectric microcavity and plasmonic nanocavity provide a platform to control the decay channels of integrated emitters, and their coupling strength, g, yields: , where N is the involved number of excitons and V is the mode volume of a cavity. The coupling strength can be enhanced by scaling down the cavity volume. Although it difficult to boost this interaction in individual single photon emitters, approaching the quantum limit of coherent interactions between individual quantum emitters and cavity resonators is crucial for fundamental quantum mechanics as well as practical applications. In this thesis, we investigated the light-matter interaction by coupling emitters with photonic and plasmonic optical cavities. We scaled down both cavity volume from photonic crystals to gap plasmonic nanocavities and the size of emitters from film, monolayer to localized single photon sources. Photonic emitters experienced a photonic environment change from broadband confinement in photonic crystals to extreme field confinement in gap plasmonic nanocavities. By scaling down the size of the cavity volume from micrometers to nanometers, we successfully manipulate light emission with high extraction in photonic crystals at weak coupling regime and strong light-matter interaction in plasmonic nanocavities. Finally, we also demonstrated single photon emitters in laser irradiated hexagonal boron nitride monolayers and the modification of spontaneous emission of quantum emitters using plasmonic resonators. Doctor of Philosophy 2020-06-17T12:25:08Z 2020-06-17T12:25:08Z 2019 Thesis-Doctor of Philosophy Hou, S. (2019). Study on manipulating photonic environment of emitters with scale dependent optical cavities. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/142247 10.32657/10356/142247 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
spellingShingle Engineering::Electrical and electronic engineering
Hou, Songyan
Study on manipulating photonic environment of emitters with scale dependent optical cavities
description Photon emitters placed into an optical cavity will experience a surrounding photonic environment change, which is essential to push nanophotonic devices into the practical realm, including photonic switches, quantum networking and nano-lasers. Spontaneous emission of emitters plays a critical role in determining the performance of many photonic devices. Both dielectric microcavity and plasmonic nanocavity provide a platform to control the decay channels of integrated emitters, and their coupling strength, g, yields: , where N is the involved number of excitons and V is the mode volume of a cavity. The coupling strength can be enhanced by scaling down the cavity volume. Although it difficult to boost this interaction in individual single photon emitters, approaching the quantum limit of coherent interactions between individual quantum emitters and cavity resonators is crucial for fundamental quantum mechanics as well as practical applications. In this thesis, we investigated the light-matter interaction by coupling emitters with photonic and plasmonic optical cavities. We scaled down both cavity volume from photonic crystals to gap plasmonic nanocavities and the size of emitters from film, monolayer to localized single photon sources. Photonic emitters experienced a photonic environment change from broadband confinement in photonic crystals to extreme field confinement in gap plasmonic nanocavities. By scaling down the size of the cavity volume from micrometers to nanometers, we successfully manipulate light emission with high extraction in photonic crystals at weak coupling regime and strong light-matter interaction in plasmonic nanocavities. Finally, we also demonstrated single photon emitters in laser irradiated hexagonal boron nitride monolayers and the modification of spontaneous emission of quantum emitters using plasmonic resonators.
author2 Teo Hang Tong Edwin
author_facet Teo Hang Tong Edwin
Hou, Songyan
format Thesis-Doctor of Philosophy
author Hou, Songyan
author_sort Hou, Songyan
title Study on manipulating photonic environment of emitters with scale dependent optical cavities
title_short Study on manipulating photonic environment of emitters with scale dependent optical cavities
title_full Study on manipulating photonic environment of emitters with scale dependent optical cavities
title_fullStr Study on manipulating photonic environment of emitters with scale dependent optical cavities
title_full_unstemmed Study on manipulating photonic environment of emitters with scale dependent optical cavities
title_sort study on manipulating photonic environment of emitters with scale dependent optical cavities
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/142247
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